Serum-syringe filler



Dec. ,287, 1926.

GQRDON SERUM SYRl NGE FILLER Filed June 29, 1922 1r/200Mo@ Patented Dec.28, 1926.

FRANK H. GORDON, OF BURNSDE, ILLINOIS.

' sEnUlvi-snmen FILLER.

Application filed June 29, 1922.

This invention aims to provide a simple means whereby a syringe of thesort used by veterinarians, may be filled with serum or other liquid,this device beingI facile in oper- 5 ation and being capable of beingsterilized readily, the construction being such that no dirt or filthcan iind its way into the serum, air being` prevented from entering thesyringe, the device being` capable of rapid ma- I nipulation, and itbeing possible to drain the last drop of serum from the receptaclewherefrom the syringe is filled.

It is within the province of the disclosure to improve generally, and toenhance the utility of' devices of thattype to which the inventionappertains.

lith the above and other objects in view, which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that, within the scope of'what is claimed, changes in the precise embodiment of the inventionshown can be made without departing from the spirit of the invention.

In the accompanying drawings Figure 1 shows in side elevation, a deviceconstructed in accordance with the inven- 20 tion; Figure 2 is a crosssection on the line 2 2 oi Figure 1; and Figure 3 is a fragmentallongitudinal section, showing the air inlet tube and parts associatedtherewith.

The numeral 1 marks a receptacle, in the form of a bottle, of thegeneral sort'in which serum and the like is supplied to veterinarians,the bottle having a neck 2 provided with a flange 3. A stopper l,preferably made of rubber, is inserted into the neck 2 and has openings5. A means is supplied for holding` the stopper l securely in the neck 2of the bottle 1, and, with this end in view,

recourse is had to a U-shaped yoke 6 provided with inwardly extendedlingers 7,

adapted to engage the flange 3 of the receptacle 1, as depicted inFigure 1. The yoke 6 carries a clamping device, adapted to engage thestopper l, the clamping device ordnarily being in the form of a screw 8,

threaded into the intermediate portion of the yoke and adapted to bearupon the stopper.

An air inlet tube 9 extends through one of the openings 5 in the stopper4 and is prolonged to a point closely adjacent te Serial No. 571,622.

theA bottom of the bottle 1. At its inner end, the air inlet tube 9 issupplied with a seat 10. An operating member 11, ordinalily a rod, islocated in the` air inlet tube 9 and carries, at its inner end a valve12, adapted to cooperate with the seat 1G of the air inlet tube. Theoperating member 11 comprises an enlarged portion le which is threadedfor adjustment into the outer end ot the tube 9, the said portion 1e ofthe operating member' being provided with a turning head 15. rlhe airinlet tube 9 is supplied, adjacent to its outer end, with any desirednumber of inlet ports 16, about which extends a pocketl?, carried by theinlet tube, the pocket being open at one end. A quantity of filteringmaterial 18 which may be cotton,.or the like, is mounted in the pocket1?, and closes the ports 16 against the entrance of foreign material,but not hermetically, it being possible for air to enter the tube 9,through the ports 16 and the filtering material 18. An outlet tube 19,]'Jreferably flexible, extends through one of the openings 5 in thestopper 4 and termim nates flush with the inner end ofthe stopper.

The numeral 2O designates a syringe of the kind used by veterinariansfor injecting serum, the syringe including a body 21 carrying a nozzle22 having a lateral inlet 23 wherewith the outlet tube 19 of thereceptacle 1 is assembled securely but detachably. A valve 24 is locatedin the nozzle 22 and is so constructed that the inlet 23 may be closed,the nozzle 22 being opened at the same time, to permit the serum to passout of the syringe. The construction of the valve is such, further, thatthe serum may be permitted t0 enter the syringe through the inlet 23 andthrough the inner end of' the nozzle 22, the outer end of the nozzlebeing closed. The general operation of such a valve is Well known, sothat itI is not necessary to detail the valve in the drawings. Thereciprocating plunger of the syringe 2O is designated by the numeral 25.

In practical operation, the receptacle 1 is inverted, the neck 2 of thereceptacle passing through the pocket 27 on the apron 26, or othergarment, worn by the operator. The valve 24 may be set so that there isa passage into the body 21 of the syringe by way of the inlet 23 and theinner end of the nozzle 22 The operatino1 member 11 may be ro tated, tospace the valve 12 from the seat 10 ol the tube 9, whereupon air willenter the receptacle l, through the material 18, through the ports 16and through the tube 9, the serum being permitted to flow outwardly,through the tube 1S), the inlet 23, and the inner end of the nozzle 22into the body 21 of the syringe 20, when the plunger 25 is retracted.After the syringe has been lled, the valve 24 may be operated to cutott' the inlet 23 and to provide an outlet passage through the nozzle22, whereupon the syringe may be used in the ordinary manner, to injectthe serum.

t is to be observed that all parts of the device'inay be sterilizedreadily. bles will not find their way into the syringe, along with theserum, Since the inner end of the outlet tube lt) terminates AHush withthe inner end ot' the stopper 4, the bottle l may be drained completely.The filtering` material indicated at- 18 prevents foreign matter frominding its way into the recep' tacle l, and the serum therefore, willretain its original purity.

Air bub- That is claimed isa- In a device of the class described` astopper, a receptacle in the bottom ot which the stopper is mounted, thestopper having :in outlet, an air inlet tube extended through thestopper to a point near to the top ot' the receptacle, the tube having alateral poelet which is mounted directly on the tube, the pocket beingopen at its top, and the stopper being disposed above the pocket,filtering material in the pocket, the tube having a lateral port coveredby the filtering material, the port forming a communication between thepocketand the bore of the tube, a stern provided with an enlargementWhich is threaded into the lower end of the tube, and a valve carried bythe stem, the valve cooperating with the upper end of the tube to openand to close the tube.

In testimony that I claim the foregoing as my own, l have hereto affixedmy signature.

FRANK H. GORDON.

